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     작동전 주의사항 / PRECAUTIONS BEFORE STARTING OPERATION 

        ☞  기계를  작동하기  전에  필히  유수판의  기름을  확인하시고  기름이  없는  상태에서는  절대로  기계를             
              작동하지  마십시오
              Please  check  oil  of  oil  pan  before  sewing  the  machine.  If  the  machine  is  lubricated  by  a  drop,   
              never  operate  the  machine  before  lubricating.

        ☞  단상인지  삼상인지  모터에  적혀있는  형식을  확인하시기  바랍니다.
              Verify  the  voltage  and  (single  or  three)phase  with  those  given  on  the  motor  nameplate. 

        ☞  스위치를  켰을  때  손을  풀리  주위나  바늘  아래에  놓지  마십시오.   
              When  turning  the  power  on,  keep  your  hands  and  fingers  away  from  the  area  around  /  under       
                the  needle  and  the  area  of  the  pulley. 
       
        ☞  처음  기계를  작동할  때는  발판을  천천히  밟아  주십시오.  무리하게  밟으면  기계에  이상이  발생될  수도   
                있습니다. 
              When  a  new  sewing  machine  is  first  turned  on,  please  pedal  smoothly.  If  you  pedaled  roughly,   
              the  machine  can  be  occurred  some  question. 

        ☞  처음  기계를  작동하실  때는  필히  스위치를  켜고,  모터의  회전  방향을  확인하시기  바랍니다.
              When  a  new  sewing  machine  is  first  turned  on,  verify  the  rotational  direction  of  the  pulley  with     
                the  power  on.  The  pulley  should  rotate  counterclockwise  when  viewed  from  the  pulley. 

        ☞  기계를  사용하지  않거나  작업자가  자리를  떠날  경우에는  필히  스위치를  꺼  주시기  바랍니다.
              Power  must  be  turned  off  when  the  machine  is  not  in  use,  or  when  the  operator  leaves  his  /  her   
                seat. 

        ☞  두부를  테이블에  설치하거나,  “V”벨트를  설치하거나  움직일  때,  기계를  조정할  때,  또는  기계를             
              제자리에  놓을  때는  필히  스위치를  꺼주시기  바랍니다.
              Power  must  be  turned  off  before  tilting  the  machine  head,  installing  or  removing  the  "V"  belt,
                adjusting  the  machine,  or  when  replacing. 

        ☞  기계가  작동할  때  풀리나  바늘  근처나  천평커버  안에  손가락을  넣지  마십시오.
              Do  not  insert  fingers  into  the  thread  take-up  cover,  under  /  around  the  needle,  or  pulley  when     
                the  machine  is  in  operation. 

        ☞  벨트커버나  손가락  보호장치(천평커버,눈보호  장치)  등과  같은  안전장치  없이는  기계를  작동하지           
                마십시오.
              Don't  operate  without  safety  devices(Finger  guard,  Thread  take-up  cover,  Belt  cover,  etc).
         
        ☞  기계의  표면을  신나나  왁스로  닦지  마십시오.
              Do  not  wash  the  machine's  face  by  the  thinner  or  wax. 

        ☞  본  사용설명서는  사정에  따라  예고  없이  내용이  변경될  수  있습니다.
              This  operating  manual  can  be  changed  the  contents  for  some  unavoidable  reasons. 

All manuals and user guides at all-guides.com

Summary of Contents for LS2-H550

Page 1: ...1 OPERATION MANUAL PART BOOK LS2 H550 LS2 H5500 SINGLE NEEDLE FEED LOCKSTITCH WITH SIDE CUTTER SEWING MACHINE WITH THREAD TRIMMER All manuals and user guides at all guides com a l l g u i d e s c o m...

Page 2: ...All manuals and user guides at all guides com...

Page 3: ...eware of injury This symbol indicates something that you must not do This symbol indicates something that you must do The picture inside the circle indicates the nature of the thing that must be done...

Page 4: ...5 off A S 31 2 40 25 OFF A S A S All manuals and user guides at all guides com...

Page 5: ...overs to the machine head and motor Be sure to wear protective goggles and gloves when handling the lubricating oil and grease so that they do not get into your eyes or onto your skin otherwise inflam...

Page 6: ...not using the machine and when leaving the machine unattended For machines with automatic presser lifter do not touch the solenoid section because if becomes hot during operation and may cause severe...

Page 7: ...y maintenance and inspection of the electrical system Turn off the power switch and disconnect the power cord from the wall outlet at the following times otherwise the machine may operate if the tread...

Page 8: ...N dealer The positions of the labels may vary slightly depending on the model of sewing machine or motor 1 2 Be sure to connect the ground If the ground connection is not secure you run a high risk of...

Page 9: ...rned on verify the rotational direction of the pulley with the power on The pulley should rotate counterclockwise when viewed from the pulley Power must be turned off when the machine is not in use or...

Page 10: ...8 4 Needle feed mechanism 8 5 Feed regulation mechanism 9 6 Thread wiper 9 7 Knife mechanism 10 8 Thread trimmer 11 14 ADJUSTMENT 15 24 1 Adjusting the needle bar height 15 2 Adjusting the rotary hook...

Page 11: ...l the belt V V 13mm 16mm Tilt back the machine head and place the belt onto the motor pulley and machine pulley Press belt with a finger force of 5 N and adjust the nut so that there is a deflection o...

Page 12: ...off any contamination from the magnet and the oil pan Use the oil specified by Spindle15 2 Adjusting lubrication for upper shaft and rotary hook 1 1 Upper shaft lubrication Remove the face plate and...

Page 13: ...e needle plate 2 Upper knife operation To operate the upper knife lower the upper knife set lever The upper knife will now operate in sync with the operation of the machine To stop the upper knife rai...

Page 14: ...needle DB 1 Insert the needle completely making sure that the lengthwise groove of the needle is on the left and secure it using the set screw Use a DBx1 needle 4 Threading the needle All manuals and...

Page 15: ...3 Pull the thread from the bobbin case tension spring 6 Winding the bobbin thread 1 2 3 4 1 Fit the bobbin in the bobbin winder shaft 2 Depress the joint as far as it will go 3 Wind the bobbin thread...

Page 16: ...djust the operation range of the thread take up spring loosen the set screw and turn the thread tension bracket assembly To adjust the tension of the thread take up spring fit a screwdriver into the s...

Page 17: ...mp moves the needle bar vertically 4 The needle bar is guided by the needle bar bracket 2 Lower shaft and rotary hook mechanism 1 2 3 1 When the pulley turns in the direction of the arrow the bevel ge...

Page 18: ...eed rocker shaft and the feed rocker bracket arm 5 When the inclination of the feed regulator and the pivot point of the level feed link change the horizontal momentum of the level feed arm link chang...

Page 19: ...nclination decides the feed amount of the feed rocker mechanism and the needle bar mechanism Pressing the reverse lever reverses the inclination of the feed regulator to feed the material in reverse 1...

Page 20: ...tric wheel with the screw moves vertically at the cam part eccentric part of the thread take up crank assembly 4 The knife driving link the knife driving rod and the knife shaft clamp assembly attache...

Page 21: ...figures show the thread trimmer without the rotary hook assembly 1 During operation The thread trimmer cam lever spring presses the thread trimmer cam lever assembly against the thread trimmer soleno...

Page 22: ...of the thread trimming clutch 3 Movable knife holder action Due to the rotation of the lower shaft the thread trimmer clutch pushes the roller shaft up The motion of the roller shaft is transmitted t...

Page 23: ...he thread trimmer clutch and returns to its original position The thread trimmer lever spring returns the thread trimmer rod and the movable knife holder to their original positions in the direction o...

Page 24: ...tly above its lowest position the upper shaft has turned approximately 330 and the needle thread is spread by the movable knife as shown in the figure above If the timing of the movement is too early...

Page 25: ...h Then firmly tighten the screw A 0 0 5mm 0 0 05mm Align the bottom reference line of the needle bar with surface A of the needle bar oil rejector needle bar bush by turning the machine pulley slowly...

Page 26: ...icated below For thin materials The needle tip is aligned with tips of the feed dog and the upper surface of the needle plate For thick materials There is a 5mm gap between the needle tip and the uppe...

Page 27: ...ew of the needle feed arm then move the needle bar bracket forward or backward 2 Feed dog position Set the feed regulating dial to maximum and turn the machine pulley Check that the needle enters the...

Page 28: ...0Kg 1 Loosen the screw and turn the machine pulley until the needle bar is raised 5 mm above its lowest position then depress the thread trimming solenoid 2 With the thread trimming solenoid depressed...

Page 29: ...thread trimming clutch 3 With the thread trimming solenoid depressed turn the machine pulley Adjust the movable knife and the fixed knife so that they overlap when the rotation of thread trimming clut...

Page 30: ...or down 1 2 2 90 1 When the feed dog is fully raised its angle is properly adjusted if the circle on the feed bracket shaft aligns with the index on the feed rock shaft arm 2 To adjust the feed dog an...

Page 31: ...ed 215 spm 3 Adjust as follows when the forward and backward stitch lengths are different 1 Remove the rear plate 2 Loosen the screw 3 When the forward stitch length is greater than the backward set t...

Page 32: ...ould be a 9 5 11 5 mm gap between the upper surface of the needle plate and the needle tip with thin or medium materials or a 10 12 mm gap with thick materials If adjustment of needle stop position is...

Page 33: ...using the presser bar lifter 2 Remove the screw and the needle plate 3 Remove the screws and the feed dog 4 Remove the screws and the auxiliary needle plate 5 Turn the machine pulley until the needle...

Page 34: ...he back edge pf the upper knife should be aligned with the needle center The upper knife can be adjusted by loosening the screw and moving the knife within a range of 2 mm forward to 3 mm backward 3 U...

Page 35: ...25 4 4 16 15 15 15 4 4 4 6 6 6 2 All manuals and user guides at all guides com...

Page 36: ...igh Thread wiper position Adjust thread wiper position with screw Thread breakage Improper threading Threading Rethread 4 Bent needle Blunt needle tip jammed eye Needle Replace needle 4 Improper needl...

Page 37: ...27 4 4 1 4 4 15 15 15 6 6 All manuals and user guides at all guides com...

Page 38: ...ser bar pressure Tighten presser foot adjustment screw Presser bar height Adjust presser bar height Improper needle to rotary hook timing Needle bar rise Adjust needle to rotary hook timing 15 Needle...

Page 39: ...29 6 6 6 6 puff 15 19 23 4 22 19 23 19 All manuals and user guides at all guides com...

Page 40: ...ap Adjust needle to rotary hook timing 15 Improper thread cutting a Needle bobbin threads not cut b Needle thread not cut c Bobbin thread not cut Movable knife fixed knife do not overlap Adjust knives...

Page 41: ...31 6 1 22 6 24 24 24 24 All manuals and user guides at all guides com a l l g u i d e s c o m...

Page 42: ...transmitted Check circuits refer to motor adjustment manual Thread wiper does not function Needle thread remainder too long Adjust pretension 6 Timing too early wipes thread before tension disc closes...

Page 43: ...33 All manuals and user guides at all guides com...

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